June 2 2023: invited lecture at UFRN, Brazil (online) organized by Claudio Costa
April 25-26 2023: invited talk at workshop organized by Matti Eklund
June 13-15 2022: invited talk at workshop in Tel Aviv, organized by David Kovacs.
April 28 2022: invited talk at the staff colloquium Santiago the Chile, organized by Rossi.